From: arjan@fenrus.demon.nl (Arjan van de Ven)
To: chas@pcscs.com (Charles Wilkins)
Cc: linux-kernel@vger.kernel.org
Subject: Re: kernel software raid support
Date: Sat, 16 Dec 2000 14:13:49 +0100 (CET) [thread overview]
Message-ID: <m147H9p-000OX2C@amadeus.home.nl> (raw)
In-Reply-To: <008201c06760$7ecd9ee0$2b6e60cf@pcscs.com>
In article <008201c06760$7ecd9ee0$2b6e60cf@pcscs.com> you wrote:
> Would anybody happen to have a current list of working patches for a
> decent implementation of software raid1 using the 2.2.18 kernel that
> employs some level of read performance that exceeds that of 1 harddisk?
This may seem odd, but it is actually not possible to get a sequential read
performance > 1 harddisk with RAID1 for single-threaded ussage patterns, given
the current on-disk structures.
I have a hack in my (2.4) tree that works around this limitation, but the
on-disk format is incompatible with the stock kernel, so it is no candidate
for inclusion...
Greetings,
Arjan van de Ven
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prev parent reply other threads:[~2000-12-16 13:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-12-16 13:02 Charles Wilkins
2000-12-16 13:13 ` Arjan van de Ven [this message]
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